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The most commonly used stainless steel brands

The most commonly used stainless steel brands

  Evek GmbH  

 (1934)    (2)    0


Stainless steel is a strong and durable material that is resistant to corrosion and acidic conditions. Today, this material is widely used in shipbuilding, in the manufacture of various devices for the chemical, textile, paper and oil industry, in the manufacture of devices for kitchens, bars, restaurants and for the manufacture of cookware, cutlery, storage containers and other kitchen utensils uses accessories.

Stainless steel has several advantages:

  • durable, resistant to mechanical damage;
  • has high antibacterial properties and meets all hygiene standards;
  • easy to clean;
  • 100% recycling.

Let's look at the most popular types of stainless steel:

AISI 200 . The combination of a high manganese and nitrogen content as well as a sufficient amount of nickel gives this alloy excellent strength, rigidity at low temperatures and ambient temperature. Steel of the 200th series has good oxidation resistance, which is comparable to AISI 301 at temperatures up to 800 ° C. Grade AISI 201 and AISI 202. This steel is a relatively inexpensive replacement for austenitic chrome-nickel steels of the classes AISI 321, AISI 304 and others. It is optimally alloyed with chrome, nickel, manganese, copper and nitrogen. The chemical composition offers an austenitic structure, high strength and excellent ductility.

Thanks to the latest manufacturing techniques and a balanced chemical composition, the austenitic steel AISI 201 has a high corrosion resistance. Steel can be easily plastically deformed, can be deep-drawn and welded with the same equipment as austenitic standard chrome-nickel types. Fields of application for AISI 200: manufacture of knives, kitchen appliances, dishes, thermos bottles, manufacture of household appliances: ovens, washing machines, extractor hoods, sinks, furniture manufacture, manufacture of office and cupboard furniture, manufacture of handrails and fences.

AISI 304 . The most popular stainless steel grade. Increased demand and widespread use is due to its versatility. AISI 304 steel has high corrosion resistance in aggressive environments, high oxidation resistance and excellent properties at low temperatures. It is worth noting that it is resistant to the negative effects of water (saline, fresh and tap water) and acidic solutions in high concentrations (acetic acid, formic acid, nitric acid). AISI 304 stainless steel is alloyed with nickel, manganese, copper and chrome, which gives it an austenitic structure, increased strength and resistance in corrosive environments.

The stainless steel AISI 304 (18 Cr-8 Ni) has found wide application due to its high oxidation resistance and high temperatures: in the chemical and pharmaceutical industry; in the food, milk and brewing industries; in medicine (surgical equipment, hypodermic needles); in the manufacture of marine equipment and devices for atomic ships; in metal rolling (pipes, angles, sheets, strips, hexagon); in oil (filter network for wells) and in mining; in the manufacture of equipment for work in a chemical environment; in the construction of structures for which strength and long life are important; in the textile and paper industry.

AISI 316 - An improved version of AISI 304 with a molybdenum content, the latter significantly affecting the corrosion resistance of this type of stainless steel. The main technical properties of this alloy at high temperatures are much higher than those of analog steels without molybdenum. The scope of installation, processing equipment, food containers, chemical industry. It is actively used in the oil and gas, chemical and shipbuilding industries.

AISI 316L steel similar to AISI 316 with very low carbon content. Particularly suitable for the manufacture of welded structures. It has a high resistance to intergranular corrosion and is used under temperature conditions up to 450 ° C.

Fields of application AISI 316L:   Used for chemical devices, instruments that come into contact with sea water and the atmosphere; Manufacture of photographic film developing apparatus; in food processing plants; Waste oil tanks.

AISI 316TI . The presence of titanium (Ti), five times the carbon content, has a stabilizing effect with regard to the deposition of chromium carbides (Cr) on the surface of the crystals.

Area of application made of stainless steel AISI 316TI : Manufacture of industrial systems for: chemical industry, food industry, pharmaceutical industry, paper industry. Manufacture of pipes, tanks, containers and tanks for: petrochemicals, food industry, pharmaceutical industry. Manufacture of heat exchangers, pumps for heating devices.

AISI 310 . Heat resistant austenitic refractory steel. In an oxidizing medium, up to 1100 ° C and up to 1000 ° C can usually be used in a reducing medium, but in any case in an atmosphere that contains less than 2 g of sulfur (S) per 1m3. AISI 310S is a low carbon version of AISI 310 and can be used in environments where corrosion from high temperature gases or condensates is possible.

Stainless steel areas of the AISI 310 brand: Manufacture of systems for heat treatment and hydrogenation, a heat exchanger for furnaces, manufacture of doors, pins, brackets, plant components for converting methane, gas pipes, combustion chambers, manufacture of heating elements and material for conveyor belts of furnaces, exhaust pipes of gas turbines and engines.

AISI 321 . The steel properties are due to the increased titanium content. Corrosion resistant and easy to weld. It can be used at temperatures of 400 - 800 ° C. Application - In the chemical and oil refining industry for the manufacture of devices that are resistant to high temperatures. Steel is in demand for the production of seamless pipes, welding equipment, pipe connectors - flanges, T-pieces, bends and transitions.

AISI 410 . Martensitic stainless steel. It has high impact resistance, good corrosion resistance and heat resistance. It is used in products that are exposed to slightly aggressive environments (precipitation, aqueous solutions of salts of organic acids), elevated temperatures and aqueous solutions.

Application area made of stainless steel aisi 410: In the food, Wine and processing industry. In products that are exposed to slightly aggressive environments. For the production of technological devices for food production as well as machine parts and devices that come into contact with food.

AISI 420 . Martensitic stainless steel, characterized by high wear resistance, ductility, resistance to high temperatures and corrosion. Compared to AISI 410, it has a higher carbon content, higher wear resistance and hardness. Application - For the production of parts that are operated in slightly aggressive environments up to 450 ° C, food processing equipment, cutting and measuring tools, heating and separating screens, filters for the production of turbine parts and boilers. It is also used as an outer layer in laminated steels.

AISI 430 . Ferritic mild steel with a high chromium content. It is resistant to corrosion in sulfurous environments. It is well deformed, bends and is used in drawing and punching. It has good strength and mechanical properties.

Areas of application for stainless steel of the AISI 430 brand: Manufacture of heat exchange systems, connecting elements, rollers, bushings, vessels that work in dilute solutions of nitric acid, acetic acid, citric acid, vessels that work in solutions of salts with oxidizing properties.

 (1934)    (2)    0

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